Website reputation report

1und1.de

Last checked 1 day ago · Point-in-time assessment

● Evidence is limited

What is this website?

Public pages were observed on 1und1.de, but their subject was not confidently classified. The sampled pages were marked as German-language. Recurring page-metadata topics include glasfaser, mobilfunk, internet.

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

68/100Safety Score
70%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History0 Infrastructure95 Website Security95 Security Hygiene70 Transparency52 Reputation50 Operational Stability96
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Independent evidence brief

What we observed about 1und1.de

Updated Sep 30, 2026

The latest scan examined 9 public pages on 1und1.de. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its homepage, the site says: Die besten Angebote für Mobilfunk & Internet ➤ Günstige Tarife ✓ Handys & Tablets ✓ Highspeed Internet ✓ Top Service ➤ Jetzt bei 1&1…

Registrar and domain history

A reliable creation date was not returned by the registration lookup. The report leaves domain age unverified rather than guessing.

Connection and hosting evidence

The checked homepage returned HTTP 200.

A valid TLS certificate was observed, expiring Jan 3, 2027.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 68/100. Evidence Confidence: 70%. These measure different things.

Public content profile

Pages reviewed on 1und1.de

9 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

1&1 Mobilfunk und Internet > Alles aus einer HandDie besten Angebote für Mobilfunk & Internet ➤ Günstige Tarife ✓ Handys & Tablets ✓ Highspeed Internet ✓ Top Service ➤ Jetzt bei 1&1 informieren! 1&1 - Glasfaser, Mobilfunk, Hosting und Server für GeschäftskundenFür Geschäftskunden bieten wir Glasfaser, Mobilfunk, Hosting und Server Dienstleistungen an. Informieren Sie sich bei 1&1. 1&1 empfehlen und Prämie sichern1&1 empfehlen: Begeistern Sie Ihre Freunde und Bekannten für Mobilfunk oder Internet von 1&1 ➤ Sichern Sie sich eine attraktive Prämie! 1&1 - DatenschutzhinweiseFür 1&1 hat der Schutz Ihrer persönlichen Informationen oberste Priorität. Selbstverständlich halten wir die relevanten Datenschutzgesetze ein. Smart Home: für Ihr intelligentes Heimnetz | 1&1Smart Home bei 1&1 ✓ Einfache Steuerung Ihrer elektrischen Geräte von Zuhause oder unterwegs ✓ Per App mit Ihrem Smartphone➤ Jetzt bei 1&1 entdecken! Internetanbieter wechseln – mit dem 1&1 Einfach‑WechselInternetanbieter wechseln mit dem 1&1 Einfach‑Wechsel ✓ wir übernehmen Kündigung & Umstellung ✓ keine doppelten Kosten ➤ Jetzt einfach wechseln! Glasfaser ⭐ Top 1&1 AngeboteGlasfaser Internet bei 1&1: ✓ Telefonieren, surfen, streamen ⭐ Unterbrechungsfrei wechseln ✓ ab 34,99€ /Monat dauerhaft ➤Jetzt sichern! Der Glasfaser Anschluss für junge Leute | 1&1Schneller Glasfaser Anschluss für eigene Wohnung oder WG ✓ Streamen ✓ Downloaden ✓ Gaming ➤ Jetzt Glasfaser Angebot für junge Leute sichern! IPTV von 1&1 – Angebot mit 170+ Sendern ab 4,99 €/MonatIPTV von 1&1 ✓ über 170 Sender ✓ ab 4,99 €/Monat ✓ Angebot flexibel buchen & auf bis zu 4 Geräten nutzen ➤ Jetzt IPTV entdecken!

Public page evidence

Topics and keywords observed on 1und1.de

10 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

glasfaserTitle, H1, Meta description3 sampled pages
mobilfunkTitle, Meta description3 sampled pages
internetTitle, Meta description3 sampled pages
sichernTitle, Meta description3 sampled pages
ab monatTitle, Meta description2 sampled pages
oderMeta description3 sampled pages
angebotTitle, Meta description2 sampled pages
wechselnTitle, Meta description2 sampled pages
angeboteTitle, Meta description2 sampled pages
surfenH1, Meta description2 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
0/100

Evidence is unavailable.

InfrastructureWeight 10%
95/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
70/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
52/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
96/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLNo signature match in the sampled HTML
Engine version1.5.4
Signature database date (UTC)2026-09-30T06:24:18+00:00
HTML bytes submitted368,182
Phishing.Database · exact hostnameNot listed in this snapshot
Feed downloaded (UTC)2026-09-30T18:00:09+00:00
Hosts in local snapshot386,072

Sampled scripts and pages

Resource analysis incomplete

6 resources checked · 9 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts9
Inline scripts81
Embedded frames1
External script hosts0

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domain1und1.de
RegistrarUnavailable
RegisteredUnavailable
Domain ageUnavailable
ExpiresUnavailable
Registry statusesUnavailable
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address2001:8d8:5ff:7::1:3
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNCloudflare
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://www.1und1.de/
Endpoint2001:8d8:5ff:7::1:3
NetworkUnavailable
CDN and WAFCloudflare · Not detected
DNS surface42 records · 4 nameservers · 2 mail exchangers
Protection signals4 security headers · 4 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size368,182 bytes
HTTP check duration0 ms
Cookies observed3
Script resources9 · 0 external hosts
Frames and sampled checks1 frames · 6 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=DigiCert Inc, organizationalUnitName=www.digicert.com, commonName=GeoTrust TLS RSA CA G1
Valid fromJun 18, 2026
Valid untilJan 3, 2027
Certificate names*.1und1.de · 1und1.de

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A217.160.72.6TTL —
AAAA2001:8d8:5ff:7::1:3TTL —
NSns-1and1.ui-dns.bizTTL —
NSns-1and1.ui-dns.comTTL —
NSns-1and1.ui-dns.deTTL —
NSns-1and1.ui-dns.orgTTL —
MX10 mxint01.1and1.comTTL —
MX10 mxint02.1and1.comTTL —
TXT_9h9qhubfpagmjz2ne79b3ptrlnkbqqlTTL —
TXT_ch2kennufs63l44dk43iplssxf901x7TTL —
TXT_dnsauth.1und1.de." "300" "IN" "TXT" "202609070941234h6x1o9ngot5ycn4u3m3wxc6aome8hv5lmx1h5r1gnfan1wdl7TTL —
TXT_telesec-domain-validation=2026-05-12_sPuFSwY2WZ9frjm3194EeJvrj7cvqZNddV40rzwoNRLUjohqxXTTL —
TXT_telesec-domain-validation=2026-06-03_OujcD7jbRxoU6hUeb9Olh143VHX9lR75n5l17I9qnZ9jZtXYFKTTL —
TXT_telesec-domain-validation=336264_2024-12-06_w7hJGfkIRhoTpHPfHGMYLLyHMWQZv6IFyogpa8jm7RTYNjsXadTTL —
TXT_ujy7u3gmmgfgqttlix10167nhkrg7w8TTL —
TXT_vu30k3kbho6lel2aw7wz0l7924x7xrpTTL —
TXT60ch0ggghydqhmxbnyz1jv01z4j3hgcjTTL —
TXT68wp9cb25cqsbvwr51vv5rpss5ym9tssTTL —
TXT86400" "atlassian-domain-verification=KAEkvhtoErKIDdiyb7e0wzavuISNOteHVzuoJX6M4VNN5REeLHY0BhBUYNFjFEt9TTL —
TXTatlassian-sending-domain-verification=9039c0d8-3025-4af4-8a92-2a187ad9eddbTTL —
TXTbrowserstack-domain-verification=ce54a9ff-ac06-40ce-9e56-5a9e156053ddTTL —
TXTcanva-site-verification=hXpNeRepGTb5z9-PE6yYegTTL —
TXTdocker-verification=5991cc66-098a-4205-b8f1-c1d7a59c43a8TTL —
TXTdocusign=5b733e1d-784b-4f07-98d9-4262d190eef3TTL —
TXTfacebook-domain-verification=9ezukrd1aasxq2gicbnxyo6whehtxkTTL —
TXTfigma-domain-verification=fbc6bfa04d2d2fd5e3a4fa49366e95c0f56c70b358263a4cc7cd72ba8bc573f8-1749541366TTL —
TXTgoogle-site-verification=FfeqcVTO1mee1wYkB9yM6QrLZOyme1zf9vtZUXp-qlsTTL —
TXTgoogle-site-verification=iK1ntngp22OUuEF9QgtlJYsoGOKBox8nEKnlbWvFVTYTTL —
TXTgoogle-site-verification=NJHrqsz0okE4ONv7jdtK4qYbktUxf_FWxAphPoebo6ETTL —
TXTgoogle-site-verification=scsrjP2WSsEhQuHP-JwaMt73YzmcDUM2ypvi_mq-HL4TTL —
TXTibmid=0a438757-7850-4d25-bca7-557535407a08TTL —
TXTkTWjWA7d16oGqSDCEOm5V9LMs4jAwKT85TH5GO2X4/WzQuw0/+CdMYO6Ta4XORCAxxmtcl7Ta1eDNF/oALKyNQ==TTL —
TXTl3chxv5x4kgsntw0pql423z0kwpbb9y4TTL —
TXTmdbct0g56gmy5gryrmd4nmb2lbsm9pmqTTL —
TXTmindmanager-verification=1ea2fdbe5379cc0f8cfe95fa5ecfdc1ff943a7bd015aed8afb5717dad146adacTTL —
TXTmiro-verification=f357f6589aae087ac2628eb14ffb483eaad4afd8TTL —
TXTMS=ms60767331TTL —
TXTMS=ms72401757TTL —
TXTnm9md4l1ln3j145qtzdzg0913x49nk4lTTL —
TXTrmf0qmd6yy6tqs25h1dxqq4jdnhyp3p9TTL —
TXTv=spf1 include:_spf.1und1.de include:_uicsspf.1und1.de include:_spf.zimpel.de include:spf.protection.outlook.com -allTTL —
TXTy19zp3xfq9q6h3sxtgdxnztm1t1cyvynTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFDNS lookup unavailable
DMARCPolicy record observed, not fully validated

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation
StatusPublished and readable
Security contacts1
Policy linkObserved
ExpiryMissing or expired

This is a public vulnerability-reporting contact file. Its presence does not prove that the website is safe and does not change the independent Safety Score.

Browser protections

Security headers

4 observed
content-security-policypresent frame-ancestors 'self' *.drillisch-online.de *.1und1.de *.1und1.com profiseller.de *.profiseller.de *.1and1.com gmx.net *.gmx.net dsl.gmx.de dsl.web.de 1und1-premiumpartner.de *.1und1-premiumpartner.de 1und1-partner.de *.1und1-partner.de 1und1-mm.de *.1und1-mm.de 1und1-freenet.de *.1und1-freenet.de yourfone-partner.de *.yourfone-partner.de *.mouseflow.com *.1und1.cloud;
referrer-policypresent strict-origin-when-cross-origin
strict-transport-securitypresent max-age=15552001; includeSubDomains
x-content-type-optionspresent nosniff

Response headers

Cookie protections

Passive observation
Cookies observed3
Missing Secure0
Missing HttpOnly0
Missing SameSite0

Only cookie attribute counts are retained. Cookie names and values are never stored. These observations are not proof of compromise and do not independently change the Safety Score.

Detected stack

Technologies

Bootstrap 80% Cloudflare 98% Tailwind CSS 72% WooCommerce 90%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

4 sampled JavaScript files checked locally with Retire.js. Database snapshot: 2026-09-30T02:40:06.930Z.

No supported library version was identified in the sampled files. This does not establish that the scripts are safe.

A version match is not proof that the website is infected or that an issue is exploitable here. Owners should review the advisory, check whether their code is affected and test an update. Up to four external script files are sampled, not every dependency, inline script or dynamically loaded resource.

Publisher supplied

Public contact details

These details were observed on the website, not independently verified as an active support channel.

Phone07219604565Source: https://www.1und1.de/empfehlen

Structured facts

Website identity & response

Public page metadata
Page title1&1 Mobilfunk und Internet > Alles aus einer Hand
First headingTablets und Laptops für Schüler und Studenten
DescriptionDie besten Angebote für Mobilfunk & Internet ➤ Günstige Tarife ✓ Handys & Tablets ✓ Highspeed Internet ✓ Top Service ➤ Jetzt bei 1&1 informieren!
Canonical URLhttps://www.1und1.de/
Final URLhttps://www.1und1.de/
HTTP response200 · text/html; charset=UTF-8 · duration unavailable
Languagede
Structured typesOrganization · WebSite
Page page detectedhttps://www.1und1.de/geschaeftskunden/
present100% evidence confidence
1100% evidence confidence
Security txt.has canonical100% evidence confidence
Security txt.expires valid100% evidence confidence
1100% evidence confidence
1100% evidence confidence
de100% evidence confidence
Local headers.cors present100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
3100% evidence confidence
Local cookies.cookies missing secure100% evidence confidence
Local cookies.cookies missing samesite100% evidence confidence
Local cookies.cookies missing httponly100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
42100% evidence confidence
4100% evidence confidence
2100% evidence confidence
unavailable100% evidence confidence
Dns consistency.cname present100% evidence confidence
Local headers.permissions policy present100% evidence confidence
2100% evidence confidence
1100% evidence confidence
Local headers.hsts preload100% evidence confidence
15552001100% evidence confidence
1100% evidence confidence
Local headers.csp wildcard sources100% evidence confidence
Local headers.csp unsafe inline100% evidence confidence
Local headers.csp unsafe eval100% evidence confidence
1100% evidence confidence
Local headers.csp has object src100% evidence confidence
Local headers.csp has default src100% evidence confidence

Connection path

Redirect chain

1 recorded hops
Hop 1https://www.1und1.de/

The chain is shown exactly as observed by the scanner. A redirect is not itself a malware finding, but unexpected domains or an HTTP downgrade deserve review.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

Enable monitoring for this website

Compared with the previous scan

What changed

Safety Score0 points
HTTP status200 → 200
Final URL changedNo
Technologies addedNone observed
Technologies removedNone observed

This comparison uses persisted scan evidence only. A changed signal can reflect a real website change, a different response or newly available evidence.

Explainable matching

Digital fingerprint

fingerprint-v1
deep-anchor-trace-034

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

No meaningful changes recorded yet.

Website icon for 1und1.de

Visual evidence

Website screenshot

Screenshot of 1und1.de
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

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Questions about 1und1.de

FAQ

Still have questions? Contact us →
Is 1und1.de safe to visit?

The latest Safety Score is 68/100 with 70% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on 1und1.de?

ClamAV found no signature match in the sampled homepage HTML. External scripts, downloads and private server files were not checked. This is not a whole-site malware clearance.

When was 1und1.de registered?

The registry lookup did not provide a reliable creation date in this scan.

Did 1und1.de have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.